Corner joint for metal beds



Aug. Q, 1932. J. T. BROTHERS 1,87,708

CORNER JOINT FOR METAL BEDS Filed May 5 1926 Patented Aug. 9, 1932UNITED sTA'rEs PArsNr JOHN TEE'IER BROTHERS, OF BIRMINGHAM, ALABAMA,ASSIGNOR, BY MESNE ASSIGN- MENTS, TO. HENRY B. FLOYD, OF CHICAGO,ILLINOIS comma JOINT FOR METAL BEDS Application filed May 3, 1926.Serial No. 106,325.

My invention relates to corner joints for beds and has for its object toprovide a joint which can be cheaply constructed and which will afiordthe maximum bracing against both lateral and vertical strains.

My invention contemplates the use of the joint in connection with anysuitable type of corner posts and side bars, but is illustrated inconnection with the customary round metal post and the angle ironsforming the side rails of the bed. The joint proper comprises an angleplate for attachment to the post which is provided with a taper slotadapted to receive a wedge plate on the rail, the wedge being preferablyattached to the vertical side of the rail and offset from its endssufliciently to enable the end of the rail to take its bearing againstone-flange of the post angle while its wedge takes its bearing in andoverhangs the side walls of the slot in the other flange of the postangle.

A further distinctive feature is arranging the slot in the post angleflange so as to leave sufficient metal in that flange lying in the planeof the wedge to form a strong brace against angular strains in avertical plane.

A further object is to increase the strength of the joint by providingthe rail at each end with headed rivets spaced to receive between themand to overhang the inside end of the slotted flange of the post angleand preferably to overhang same on each side, the wedge and the rivetsbeing all set so that a three point bearing is provided which willgreatly strengthen the joint.

A further object of my invention is to adapt the headed rivets tooverhang the side flange of the post angle so as to afford increasedstrength against lateral strain.

A further object is to adapt the wedge to permit the side rail to bereversed by inverting it, and in order to insure the wedge taking itshearing at the proper point against the corner post angle the bearingedge of the elongated wedge is cut away except at its extreme ends, thusinsuring the maximum leverage resistance to vertical cocking strains onthe joint.

My invention further comprises the novel details of construction andarrangements of parts, which are illustrated in the accompanying drawingwhich forms a part of this specification, and in which Fig. 1 is a planview of my improved corner joint with the side rail shown in plan brokenaway and one corner post shown in section.

Fig. 2 is a side elevation of Fig. 1.

Fig. 3 is adetail View of the corner post angle mounted on the post.

Similar reference numerals referto similar parts throughout the drawing.

In the embodiment of my invention which is illustrated, I showconventionally a corner post 1 of a metalbed and to this post isattached an angle having a flange 2, shaped to conform to the post andadapted to be attached thereto by a plurality of attaching elements 3,such as rivets, bolts, etc. The other flange 4 of this angle is providedwith a taper slot 5 opening through its upper edge dividing the flangeinto an outer taper tongue 6 and an inner portion 7 which is left wideenough to provide enough metal to withstand the strains thereon from thewedge hereinafter described. The tongue 6 has its edge 16 toward thepost 1 tapered while the portion 7 has a straight edge 19 which risesabove the top level of the tongue 6.

I illustrate the side rail 8 of the bed conventionally as formed of anangle iron having a horizontal flange 9 and a vertical flange 10, theflange 9 having its ends notched or cut away as at 11 to engage the postangle flange 2 on both sides of the rivets 3 and take a firm bearingagainst this flange. The vertical flange 10 at each end is provided witha double wedge 12 which is attached to the flange 10 preferably by meansof a headed rivet 13, the head of the rivet being adapted to overhangthe wedge on each side and the body of the rivet being adapted to fitsnugly between the edges 16 and 19 at the upper end of the slot5 in thepost angle flange 4. Spaced inwardly from each headed rivet 13 is asecond or smaller headed rivet 14 having its body portion spaced fromthat'of the ad jacent rivet 13 sufficiently to receive snugly betweenthem the upper end of the tongue 6 on the post angle. .The wedgehasreversely @FFICE v tapering faces 15 and 18, one or the other ofwhich is adapted to co-act with the wedge face 16 of the tongue 6, thesefaces 15 and 18 being symmetrical with respect to the side rail and therivet 13. The other edge of the wedge 12 is notched at 17 so as to leaveat its ends bearing faces lying in a common vertical plane and adaptedto engage the slot edge 19. i

In assembling the joint, having mounted the angle 1 on the corner post 1and having applied the wedges 12 and the rivets 13 and 14 to each end ofthe side rail 8, the joint is assembled by inserting; the wedges 12 in.

the slot 5 until contact is established at the following points: thetongue 6 and flange 7 will engage-under the heads of-the rivets 13 and14; the tongued will fit snugly between the shanks of the rivets 13 and14; the face 15 or 18 of the wedge 12 will take its bearing against thetaper" edge 16 of the tongue 6; the upper and lower ends of the wedgewillbear against "the" edge 19 of the flange portion 7 and the forkedends of the rail flange 9 will take their bearing against the sides ofthe post angle flange 2. These several engagements between the co-actingelements ofthe corner joint will all take effect simultaneously and willafford the maximum strength to resist cocking strains both verticallyand horizontally and yet the joint elements are extremely simple inconstruction, inexpensive and very simply applied and operated. It isdesirable to use double wedges 12 which are symmetrical with respect totheir mounting rivets 13, so that the side rails can be reversed andinverted accordin to whether slats or box springs are to be used.

' Though I have described with great particularity the details of 'theembodiment of the invention herein shown, it is not to be construed thatI am limited thereto, as changes in arrangement and substitution ofequivalents may be made by those skilled in member and having a wedgeadapted to take a bearing in the slot of said latter flange.

2. A corner joint according to claim 1, in which one of the buttonrivets is adapted to mount the wedge on the rail and to overhang saidwedge on each side for the purposes described.

- 3. A corner joint according to claim 1, in which said button rivetshave their shanks spacedto snugly engage the tongue of the and a tapertongue substantially shorter than.

the post member, a double wedgle'mounted symmetrically on the flange ofthe mil and adapted to have one end received in the slot of the bedelement and at both ends to engage the straight bearing edge of saidslot both above and below the side. rail,and buttonheaded rivets on theside rail, one serving to mount said wedge on the rail and ada ted tooverhang the side walls of the s 0t and the other spaced to snuglyreceive the upper edge of the tongue between it'and the wedge.

In testimony whereof, I aflix my signature.

JOHN TEETER BROTHERS.

the .art without departing from the invention as defined in the appendedclaims.

Having thus described my invention, what I I claim as new and desire tosecure by Letf ters Patent, is V 1. A corner joint for metal beds havingcorner posts and angled side rails, comprising an angled post memberprovided with one flange adapted for attachment to the post and anotherflange provided with a vertical slot spaced from the point of junction 7of said flanges and shaped to provide a straight'vertical edge adjacentthe junction and an upwardly tapering tongue having an inner edgedownwardly inclined toward the 7 ing button rivets on its verticalflange adapted to overlap said slotted flange on said post i

